Conflicted about Founding Engineer Role (I will not promote)

Title says it all. I’m currently at 2.5 YOE at big tech making 250k. I love my work life balance and get to work on a lot of different side hustles. Recently, I was offered the founding engineer (#1 employee) at a vertical SAAS company in the food industry. The comp is 160k for 3% equity. The caveat is that I would be the first technical employee, both co founders are non technical. The 2 co founders are genuinely very impressive and seem very smart. One of them has a lot of connections in this space so the